Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Fatigue modeling of chopped strand mat/epoxy composites

  • Shokrieh, M.M. (Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology) ;
  • Esmkhania, M. (Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology) ;
  • Taheri-Behrooz, F. (Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology)
  • Received : 2013.12.09
  • Accepted : 2014.03.02
  • Published : 2014.04.25
⟨ Previous Next ⟩

Abstract

In the present research, fatigue behavior of chopped strand mat/epoxy composites has been studied with two different techniques. First, the normalized stiffness degradation approach as a well-known model for unidirectional and laminated composites was utilized to predict the fatigue behavior of chopped strand mat/epoxy composites. Then, the capability of the fatigue damage accumulation model for chopped strand mat/epoxy composites was investigated. A series of tests has been performed at different stress levels to evaluate both models with the obtained results. The results of evaluation indicate a better correlation of the normalized stiffness degradation technique with experimental results in comparison with the fatigue damage accumulation model.

Keywords

References

  1. Caprino, G. and D'Amore, A. (1998), "Flexural fatigue behavior of random continuous-fiber reinforced thermoplastic composites", Compos. Sci. Tech., 58, 957-965. https://doi.org/10.1016/S0266-3538(97)00221-2
  2. Crossman, F.W. and Wang, A.S.D. (1982), "The dependence of transverse cracking and delamination on ply thickness in graphite/epoxy laminates", Damage in Compos Mater, ASTM STP-775, 118-139.
  3. Epaarachchi, J.A. and Clausen, P.D. (2003), "A model for fatigue behavior prediction of Glass Fibre- Reinforced Plastic (GFRP) composites for various stress ratios and test frequencies", Compos. A: Appl. Sci. Manuf., 34, 313-326. https://doi.org/10.1016/S1359-835X(03)00052-6
  4. Highsmith, A.L., Stinchcomb, W.W. and Reifsnider, K.L. (1984), "Effect of fatigue induced defects on the residual response of composite laminates", Effects of defects in Composite Materials, ASTM STP-836, 194-216.
  5. Mandell, J.F. (1990), Fatigue of Composite Materials, Ed. Reifsnider, K.L., Elsevier Science Publishers B.V.
  6. O'Brien, T.K. (1982), "Characterization of delamination onset and growth in a composite laminate", Damage in Composite Materials, ASTM STP-775, 140-167.
  7. Ogin, S.L., Smith, P.A. and Beaumont, P.W.R. (1985), "Matrix cracking and stiffness reduction during the fatigue of a (0/90) GFRP laminate", Compos. Sci. Tech., 22, 23-31. https://doi.org/10.1016/0266-3538(85)90088-0
  8. Whitworth, H.A. (2000), "Evaluation of the residual strength degradation in composites laminates under fatigue loadings", Compos. Struct., 48, 261-264. https://doi.org/10.1016/S0263-8223(99)00113-0
  9. Whitworth, H.A. (1997), "A stiffness degradation model for composite laminates under fatigue loading", Compos. Struct., 40, 95-101. https://doi.org/10.1016/S0263-8223(97)00142-6
  10. Ye, L. (1989), "On fatigue damage accumulation and material degradation in composite materials", Compos. Sci. Tech., 36, 339-350. https://doi.org/10.1016/0266-3538(89)90046-8
  11. Poursartip, A. and Beaumont, P.W.R. (1983), A damage approach to the fatigue of composites, Mechanics of Composite Materials, Recent Advances, Ed. Hashin, Z. and Herakovich, C.T., Pergamon Press, New York.
  12. Poursartip, A., Ashby, M.F. and Beaumont, P.W.R. (1986), "The fatigue damage mechanics of a carbon fiber composite laminate, I - Development of the model", Compos. Sci. Tech., 25, 193. https://doi.org/10.1016/0266-3538(86)90010-2
  13. Prusty, B.G., Pan, J.W. and Sul, J. (2009), "Characterization of temperature-dependent behavior of chopped strand mat GRP during low cyclic fatigue", Conference of Composites or Nano Engineering, Honolulu, Hawaii.
  14. Reifsnider, K.L. (1986), "The critical element model: a modeling philosophy", Eng. Fract. Mech., 25, 739-749. https://doi.org/10.1016/0013-7944(86)90037-8
  15. Reifsnider, K.L., Henneke, E.G., Stinchcomb, W.W. and Duke, J.C. (1983), "Damage mechanisms and NDE of composite laminates", Mechanics of Composite Materials, Recent Advances, Ed. Hashin, Z. and Herakovich, C.T., Pergamon Press, New York.
  16. Shokrieh, M.M. and Lessard, L.B. (2000), "Progressive fatigue damage modeling of composite materials Part I: modeling", J. Compos. Mater., 34, 1056. https://doi.org/10.1177/002199830003401301
  17. Sul, J.H., Prusty, B.G. and Pan, J.W. (2010), "A fatigue life prediction model for Chopped Strand Mat GRP at elevated temperatures", Fatig. Fract. Eng. Mater. Struct., 33, 513-521. https://doi.org/10.1111/j.1460-2695.2010.01460.x
  18. Wang, S.S. and Chim, E.S.M. (1983), "Fatigue damage and degradation in random short-fiber SMC composite", J. Compos. Mater., 17, 114-131. https://doi.org/10.1177/002199838301700203
  19. Whitworth, H.A. (1987), "Modeling the stiffness reduction of graphite/epoxy composite laminates", J. Compos. Mater., 21, 362-372. https://doi.org/10.1177/002199838702100405
  20. Yang, J.N, Jones, D.L., Yang, S.H. and Meskini, A. (1990), "Stiffness degradation model for graphite/ epoxy laminates", J. Compos. Mater., 24, 753-769. https://doi.org/10.1177/002199839002400705

Cited by

  1. A probabilistic analysis of Miner's law for different loading conditions vol.60, pp.1, 2016, https://doi.org/10.12989/sem.2016.60.1.071
  2. A combined micromechanical-energy method to predict the fatigue life of nanoparticles/chopped strand mat/polymer hybrid nanocomposites vol.133, 2015, https://doi.org/10.1016/j.compstruct.2015.08.003
  3. Flexural fatigue modeling of short fibers/epoxy composites vol.64, pp.3, 2014, https://doi.org/10.12989/sem.2017.64.3.287
  4. Very high cycle and gigacycle fatigue of fiber-reinforced composites: A review on experimental approaches and fatigue damage mechanisms vol.118, pp.None, 2014, https://doi.org/10.1016/j.pmatsci.2020.100762